87572103691 has 8 divisors (see below), whose sum is σ = 92258844480. Its totient is φ = 82893131208.

The previous prime is 87572103683. The next prime is 87572103743. The reversal of 87572103691 is 19630127578.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87572103691 - 2³ = 87572103683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87572103601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918921 + ... + 1964026.

It is an arithmetic number, because the mean of its divisors is an integer number (11532355560).

Almost surely, 2^87572103691 is an apocalyptic number.

87572103691 is a deficient number, since it is larger than the sum of its proper divisors (4686740789).

87572103691 is a wasteful number, since it uses less digits than its factorization.

87572103691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3884153.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 87572103691 in words is "eighty-seven billion, five hundred seventy-two million, one hundred three thousand, six hundred ninety-one".